All Edelbrock fuel rails are machined from high quality extruded aluminum. Each kit includes fuel rails, stands and mounting hardware. Fuel fittings, crossover line and regulator not included. 3639 fuel rail kit is for use with 4.6L Ford Victor Jr. Manifold #28385 and standard injectors. Rails will have a Clear Anodized Finish and 3/8" NPT inlet/outlets.